Form4insider filings, from the source

Company · CIK 0001828791 · SIC 7370 — Services-Computer Programming, Data Processing, Etc. · Nasdaq

Viant Technology Inc. · DSP

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $3.5M · 15net −$3.5M
$10k$10k$100k$100k$1M$1MbuyssalesJun 4Jun 21Jul 9Jul 26Aug 13Aug 30Sep 17

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 16, 2026 SForm 4 →Sep 18, 8:37 pm EDTLarry MaddenChief Financial Officer31,644$12.33$390,019342,711−8.45%10b5-1
Sep 10, 2026 DForm 4 →Sep 14, 7:33 pm EDTChristopher VanderhookChief Operating Officer, Director, 10% Owner8,636$12.74$110,023285,244—
Sep 10, 2026 DForm 4 →Sep 14, 7:30 pm EDTTimothy VanderhookCEO and Chairman, Director, 10% Owner8,636$12.74$110,023200,244—
Sep 10, 2026 FForm 4 →Sep 14, 7:27 pm EDTLarry MaddenChief Financial Officer24,016$12.74$305,964374,355—
Aug 11, 2026 SForm 4 →Aug 13, 6:25 pm EDTLarry MaddenChief Financial Officer27,451$13.06$358,514398,371−6.45%10b5-1
Aug 10, 2026 AForm 4 →Aug 12, 7:15 pm EDTCraig Justin AbrahamsDirector39,109——39,109—
Jul 23, 2026 SForm 4 →Jul 27, 7:23 pm EDTLarry MaddenChief Financial Officer2,814$10.69$30,070425,822−0.66%10b5-1
Jul 21, 2026 SForm 4 →Jul 23, 9:54 pm EDTTimothy VanderhookCEO and Chairman, Director, 10% Owner12,500$11.01$137,6440−100%10b5-1
Jul 21, 2026 DMForm 4 →Jul 23, 9:54 pm EDTTimothy VanderhookCEO and Chairman, Director, 10% Owner25,000——9,069,775—10b5-1
Jul 21, 2026 SForm 4 →Jul 23, 9:54 pm EDTChristopher VanderhookChief Operating Officer, Director, 10% Owner12,500$11.01$137,6440−100%10b5-1
Jul 21, 2026 DMForm 4 →Jul 23, 9:54 pm EDTChristopher VanderhookChief Operating Officer, Director, 10% Owner25,000——9,069,775—10b5-1
Jul 21, 2026 SForm 4 →Jul 23, 9:53 pm EDTCapital V LLC10% Owner37,500$11.01$412,9330−100%10b5-1
Jul 21, 2026 DMForm 4 →Jul 23, 9:53 pm EDTCapital V LLC10% Owner75,000——27,209,326—10b5-1
Jul 6, 2026 SForm 4 →Jul 8, 8:41 pm EDTLarry MaddenChief Financial Officer30,519$12.77$389,773428,636−6.65%10b5-1
Jun 16, 2026 SForm 4 →Jun 18, 7:08 pm EDTChristopher VanderhookChief Operating Officer, Director, 10% Owner12,500$11.10$138,7110−100%10b5-1
Jun 16, 2026 DMForm 4 →Jun 18, 7:08 pm EDTChristopher VanderhookChief Operating Officer, Director, 10% Owner25,000——9,082,275—10b5-1
Jun 16, 2026 SForm 4 →Jun 18, 7:08 pm EDTTimothy VanderhookCEO and Chairman, Director, 10% Owner12,500$11.10$138,7110−100%10b5-1
Jun 16, 2026 DMForm 4 →Jun 18, 7:08 pm EDTTimothy VanderhookCEO and Chairman, Director, 10% Owner25,000——9,082,275—10b5-1
Jun 16, 2026 SForm 4 →Jun 18, 7:08 pm EDTCapital V LLC10% Owner37,500$11.10$416,1320−100%10b5-1
Jun 16, 2026 DMForm 4 →Jun 18, 7:08 pm EDTCapital V LLC10% Owner75,000——27,246,826—10b5-1
Jun 15, 2026 SForm 4 →Jun 15, 8:41 pm EDTLarry MaddenChief Financial Officer25,376$11.10$281,674459,155−5.24%
Jun 15, 2026 SForm 4 →Jun 15, 8:41 pm EDTChristopher VanderhookChief Operating Officer, Director, 10% Owner9,125$11.10$101,288293,880−3.01%
Jun 15, 2026 SForm 4 →Jun 15, 8:41 pm EDTTimothy VanderhookCEO and Chairman, Director, 10% Owner9,125$11.10$101,288208,880−4.19%
Jun 9, 2026 AGForm 4 →Jun 10, 8:01 pm EDTTimothy VanderhookCEO and Chairman, Director, 10% Owner416,768——52,096—
Jun 9, 2026 AGForm 4 →Jun 10, 7:59 pm EDTChristopher VanderhookChief Operating Officer, Director, 10% Owner416,768——52,096—
Jun 8, 2026 SForm 4 →Jun 10, 7:59 pm EDTMax O ValdesDirector6,686$12.03$80,45729,449−18.5%
Jun 5, 2026 SForm 4 →Jun 8, 8:23 pm EDTLarry MaddenChief Financial Officer33,333$12.18$405,963484,531−6.44%10b5-1
Jun 4, 2026 AForm 4/A →Jun 10, 8:00 pm EDTVivian YangDirector14,544——108,457—
Jun 4, 2026 AForm 4/A →Jun 10, 8:00 pm EDTBrett WilsonDirector14,544——50,463—
Jun 4, 2026 AForm 4 →Jun 5, 4:04 pm EDTVivian YangDirector15,948——109,861— amended
Jun 4, 2026 AForm 4 →Jun 5, 4:03 pm EDTBrett WilsonDirector15,948——51,867— amended
Jun 4, 2026 AForm 4 →Jun 5, 4:03 pm EDTMax O ValdesDirector15,948——37,539—

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Jul 21, 2026 MForm 4 →Jul 23, 9:54 pm EDTTimothy VanderhookCEO and Chairman, Director, 10% Owner12,500——9,069,775—10b5-1
Jul 21, 2026 AForm 4 →Jul 23, 9:54 pm EDTChristopher VanderhookChief Operating Officer, Director, 10% Owner12,500——9,069,775—10b5-1
Jul 21, 2026 MForm 4 →Jul 23, 9:53 pm EDTCapital V LLC10% Owner37,500——27,209,326—10b5-1
Jun 16, 2026 MForm 4 →Jun 18, 7:08 pm EDTChristopher VanderhookChief Operating Officer, Director, 10% Owner12,500——9,082,275—10b5-1
Jun 16, 2026 MForm 4 →Jun 18, 7:08 pm EDTTimothy VanderhookCEO and Chairman, Director, 10% Owner12,500——9,082,275—10b5-1
Jun 16, 2026 MForm 4 →Jun 18, 7:08 pm EDTCapital V LLC10% Owner37,500——27,246,826—10b5-1
Jun 9, 2026 AGForm 4 →Jun 10, 8:01 pm EDTTimothy VanderhookCEO and Chairman, Director, 10% Owner416,768——52,096—
Jun 9, 2026 AGForm 4 →Jun 10, 7:59 pm EDTChristopher VanderhookChief Operating Officer, Director, 10% Owner416,768——52,096—